Home / 86,974.16-119,971.26-57,505.80

Finding the Fourth Proportional to 86,974.16, 119,971.26 and 57,505.80

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Solution

The fourth proportional to 86,974.16, 119,971.26 and 57,505.80 is: 79,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.16 : 119,971.26 = 57,505.80 : x
  2. Step 2: Convert to fraction form
    86,974.16/119,971.26 = 57,505.80/x
  3. Step 3: Cross multiply
    86,974.16x = 119,971.26 × 57,505.80
  4. Step 4: Simplify right side
    86,974.16x = 6,899,043,283.31
  5. Step 5: Solve for x
    x = 6,899,043,283.31/86,974.16
  6. Step 6: Final answer
    x = 79,322.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.